I bought a 2012 10th Anniversary 9/8/12. First I drilled 8, 7/16" holes in the end pipe. Sound was a lot better. Then i get a Power Vision and do a V-modd. The V-modd pipes sounds incredible.
Pretty easy, use a 3" hole saw and screwed on a 1-3/8 hole saw on the end of the arbor to center my cut. The baffle comes out with out cutting the other end.
Then I cut the mesh about 3/4" in, and bent the mesh to the out side. Use high temp blk silicone around the inside of the pipe and pulled the mess to the rear. And then topless yesterday.
Mark